Pressure calibration systems and control valve assemblies

Details Pressure calibration systems and control valve assemblies Pressure calibration systems and control valve assemblies

1986-07-22

1987-10-13

Noland, Tom

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

251122, 251332, 137596, 137601, G01L 2700, F16K 104, F16K 138, F16K 142

Patent

active

046989986

ABSTRACT:
High-pressure, micrometering valves requiring low-actuating torque are combined in a lightweight, portable pressure calibration console, housed in a common valve block. A manual pressure valve and a manual vent valve connect compressed gas from an internal storage cylinder to pressure measuring gages or transducers to be calibrated. Automatically actuated isolation valves connect and disconnect a vernier balancing cylinder assembly, permitting fine manual adjustment of calibration pressures as high as 10,000 psi. Positive shutoff combined with low-torque, fingertip control and non-jamming closure are provided by the frictionally-engaged valve components.

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